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ubuntudockersudo

Not able to start a Docker in Ubuntu

ubuntu-gnome@ubuntu-gnome:~$ docker images

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.30/images/json: dial unix /var/run/docker.sock: connect: permission denied


ubuntu-gnome@ubuntu-gnome:~$ sudo docker images

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
ubuntu-gnome@ubuntu-gnome:~$
Solution

  • After install docker, it is not running by default. Assuming this is Ubuntu 16.04

    You need to run below to start docker

    $ sudo systemctl start docker

    And below to set it to start on boot

    $ sudo systemctl enable docker